:root{
  --bg:#0b0e14; --bg2:#111722; --card:#141b28; --line:#1f2a3d;
  --txt:#e8eefc; --mut:#8494ad; --pri:#4d7cff; --pri2:#7c5cff;
  --ok:#22c55e; --warn:#f59e0b; --err:#ef4444;
  --r:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 600px at 50% -10%,#16233d 0%,var(--bg) 55%) fixed,var(--bg);
  color:var(--txt);font:15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column;
}
a{color:inherit;text-decoration:none}
main{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:0 18px 60px}
.muted{color:var(--mut)}
.small{font-size:12.5px}
.center{text-align:center}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}

/* 顶栏 */
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;max-width:1080px;margin:0 auto;width:100%}
.nav .brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:.3px}
.dot{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--pri),var(--pri2));box-shadow:0 0 12px #4d7cffaa}
.nav nav{display:flex;gap:20px;font-size:14px;color:var(--mut)}
.nav nav a:hover{color:var(--txt)}

/* Hero */
.hero{padding:46px 4px 26px;text-align:center}
.hero h1{font-size:34px;margin:0 0 8px;letter-spacing:-.5px;background:linear-gradient(120deg,#fff,#9db4ff 60%,#c3a8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--mut);margin:0 0 18px}
.hero-badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;font-size:12.5px;color:#b9c7e2}
.hero-badges span{background:#131b29;border:1px solid var(--line);padding:6px 12px;border-radius:999px}

/* 商品 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:14px}
.card{background:linear-gradient(180deg,#151d2b,#111722);border:1px solid var(--line);border-radius:var(--r);
  padding:18px;transition:.18s;display:flex;flex-direction:column;min-height:196px}
.card:hover{transform:translateY(-3px);border-color:#2f4a7d;box-shadow:0 18px 40px -20px #000}
.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.tag{background:#1b2a4a;color:#8fb0ff;font-size:11.5px;padding:3px 9px;border-radius:999px;border:1px solid #24395e}
.stock{font-size:12px;color:var(--ok)}
.stock.out{color:var(--warn)}
.card h3{margin:2px 0 6px;font-size:17px;line-height:1.4}
.card .desc{color:var(--mut);font-size:13px;margin:0 0 14px;flex:1}
.card-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px dashed var(--line)}
.price{font-size:20px;font-weight:700;color:#fff}
.price i{font-size:11px;font-style:normal;color:var(--mut);font-weight:400}
.buy{font-size:13px;color:#7f9cff}

.notice{margin-top:32px;background:#101725;border:1px solid var(--line);border-radius:var(--r);padding:18px 22px}
.notice h4{margin:0 0 8px;font-size:14px}
.notice ol{margin:0;padding-left:20px;color:var(--mut);font-size:13px}
.notice li{margin:4px 0}

/* 详情 */
.detail{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;margin-top:26px}
@media(max-width:760px){.detail{grid-template-columns:1fr}}
.detail-main,.detail-side{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.detail-main h1{font-size:24px;margin:10px 0 8px}
.specs{margin:16px 0 0;padding:0;list-style:none}
.specs li{color:var(--mut);font-size:13.5px;padding:7px 0;border-bottom:1px dashed var(--line)}
.specs li:before{content:"•";color:var(--pri);margin-right:8px}
.side{}
.price-big{font-size:30px;font-weight:700}
.price-big i{font-size:12px;font-style:normal;color:var(--mut);font-weight:400}
.detail-side label{display:block;margin:16px 0 6px;font-size:13px;color:var(--mut)}
input,select,textarea{width:100%;background:#0d1320;border:1px solid var(--line);color:var(--txt);
  border-radius:10px;padding:11px 13px;font-size:14px;outline:none;font-family:inherit}
input:focus,select:focus,textarea:focus{border-color:#33508a;box-shadow:0 0 0 3px #4d7cff20}
.total{margin:16px 0;font-size:14px;color:var(--mut)}
.total b{color:#fff;font-size:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#1a2437;border:1px solid var(--line);
  color:var(--txt);padding:11px 18px;border-radius:11px;font-size:14px;cursor:pointer;transition:.15s;font-family:inherit}
.btn:hover{background:#213050}
.btn.primary{background:linear-gradient(135deg,var(--pri),var(--pri2));border:none;font-weight:600;box-shadow:0 10px 26px -12px #4d7cff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.wide{width:100%;margin-top:6px;padding:13px}
.btn.sm{padding:7px 12px;font-size:12.5px;border-radius:9px}
.btn:disabled{opacity:.6;cursor:default}

/* 收银台 */
.pay{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;margin-top:26px}
@media(max-width:760px){.pay{grid-template-columns:1fr}}
.pay-box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.pay-head{display:flex;justify-content:space-between;align-items:center}
.chip{background:#18233a;border:1px solid #24395e;color:#9db4ff;padding:4px 11px;border-radius:999px;font-size:12.5px}
.pay-amount{font-size:40px;font-weight:700;text-align:center;margin:22px 0 4px;letter-spacing:-1px}
.pay-amount i{font-size:13px;font-style:normal;color:var(--mut);font-weight:400}
.pay-methods{margin:22px 0 16px}
.method{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:13px 15px;background:#111a29;cursor:pointer}
.method.active{border-color:#3a5da8;background:#131e33}
.method input{display:none}
.m-icon{width:34px;height:34px;border-radius:10px;background:#1a2740;display:grid;place-items:center;font-size:16px}
.method b{display:block;font-size:14px}
.method em{font-style:normal;color:var(--mut);font-size:12px}
.pay-side{background:#101725;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.pay-side h4{margin:0 0 10px;font-size:14px}
.pay-side ul{padding-left:18px;margin:0}
.pay-side li{margin:7px 0}
.done{text-align:center;padding:14px 0 0}
.ok-icon{width:56px;height:56px;border-radius:50%;background:#12331f;color:var(--ok);display:grid;place-items:center;
  font-size:28px;margin:0 auto 12px;border:1px solid #1d5c35}
.done pre{background:#0d1320;border:1px solid var(--line);border-radius:10px;padding:14px;text-align:left;
  font-size:13px;overflow:auto;color:#a8e6bd;margin:12px 0}

/* 查询 */
.narrow{max-width:560px;margin:34px auto}
.narrow h1{font-size:24px;margin-bottom:16px}
.search{display:flex;gap:10px;margin-bottom:20px}
.order-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.order-card .row{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px}
.order-card .row.col{flex-direction:column}
.order-card .row span{color:var(--mut);font-size:13px}
.order-card pre{white-space:pre-wrap;background:#0d1320;border-radius:9px;padding:12px;margin:6px 0 0;color:#a8e6bd;font-size:13px}
.s-paid{color:var(--ok)}.s-pending{color:var(--warn)}.s-closed{color:var(--mut)}

/* 登录 */
.login-body{display:grid;place-items:center}
.login-box{width:340px;max-width:92vw;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.login-box h2{margin:0 0 6px;font-size:19px}
.login-box input{margin:14px 0 10px}
.err{color:var(--err);font-size:13px;margin-top:8px;min-height:18px}

/* 页脚 */
.foot{border-top:1px solid var(--line);padding:22px;text-align:center;color:var(--mut);font-size:13px}
.foot .muted{margin-top:4px}

/* 收银台：订单信息 + 安全提示 */
.pay-meta{margin:4px 0 18px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#0d1421}
.pm-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);font-size:13px}
.pm-row:last-child{border-bottom:none}
.pm-row span{color:var(--mut)}
.pm-row b{font-weight:600;text-align:right;word-break:break-all}
#payout-addr{cursor:pointer;color:#9db4ff}
.chip.warn{background:#2a1a12;border-color:#5c3a1d;color:#fbbf24}
.chip.danger{background:#2a1214;border-color:#5c1d22;color:#f87171}
.safe-note{display:flex;gap:10px;margin-top:14px;padding:12px;border-radius:10px;background:#0d1421;border:1px solid var(--line);color:var(--mut);font-size:12.5px;line-height:1.6}
.btn.subtle{background:#111a29;border:1px solid var(--line);color:#a7b6cd}
.btn.subtle:hover{background:#16213a}

.copy-ico{font-style:normal;font-size:11px;margin-left:7px;padding:1px 6px;border:1px solid var(--line);border-radius:6px;color:#8fa2bd;vertical-align:middle}
#hint{margin-top:11px;line-height:1.6}
#refreshbtn{border-radius:10px;color:#93a5c0}
.btn.subtle:hover{color:#cfe0ff}

/* 直转模式：大号收款地址块 */
.direct-box{margin:18px 0 16px;border:1px dashed #2f4a7a;border-radius:14px;padding:16px;background:#0c1524}
.db-top{font-size:13px;color:var(--mut);margin-bottom:10px;line-height:1.6}
.db-top b{color:#e8eefc}
.db-addr{display:block;cursor:pointer;background:#101d31;border:1px solid #24395e;border-radius:10px;padding:12px 13px;font-size:13.5px;line-height:1.55;color:#cfe0ff;word-break:break-all}
.db-addr:hover{border-color:#3a5da8}
.db-addr .copy-ico{margin-left:0;white-space:nowrap}
.db-net{font-size:12px;color:#f59e0b;margin-top:9px}
@media(max-width:520px){
  .db-addr{font-size:12.5px}
  .pay-amount{font-size:34px}
}

/* 移动端导航：品牌一行，入口一行铺开，五个入口都露出来不滚动 */
@media(max-width:560px){
  .nav{flex-wrap:wrap;padding:11px 14px 9px;gap:8px}
  .nav .brand{font-size:15px;white-space:nowrap}
  .nav nav{width:100%;justify-content:space-between;gap:6px;font-size:12.5px;
    white-space:nowrap;flex-wrap:nowrap;overflow:visible}
  .nav nav a{white-space:nowrap}
}
@media(max-width:380px){
  .nav .brand{font-size:14px}
  .nav nav{gap:5px;font-size:11.5px}
}